Results 11 to 20 of about 635,098 (305)
Blue Stragglers in Clusters and Integrated Spectral Properties of Stellar Populations [PDF]
Blue straggler stars are the most prominent bright objects in the colour-magnitude diagram of a star cluster that challenges the theory of stellar evolution.
Yu Xin, Li-Cai Deng, Yu Xin, Li-Cai Deng
openalex +2 more sources
The Blue Straggler F190: A Case for Mass Transfer [PDF]
The blue straggler F190 is a member of the old open cluster M67. We argue that F190 may still be in the final stages of the mass transfer that has made it into a blue straggler. We use the turnoff mass of the cluster and the mass function derived from the spectroscopic orbit for F190 to constrain the masses of each member of the binary, both before ...
Alejandra A. E. Milone, David W. Latham
openalex +2 more sources
Models of Individual Blue Stragglers [PDF]
This chapter describes the current state of models of individual blue stragglers. Stellar collisions, binary mergers (or coalescence), and partial or ongoing mass transfer have all been studied in some detail.
A. Sills
semanticscholar +3 more sources
Modeling blue stragglers in young clusters [PDF]
In this paper, a grid of the binary evolution models are calculated for the study of blue straggler (BS) population in intermediate age ($\log Age$=7.85-8.95) star clusters. The BS formation via mass transfer and merging is studied systematically using our models.
Pin Lu, Li-Cai Deng, Xiao-Bin Zhang
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Blue Stragglers as Tracers of the Dynamical State of Two Clusters in the Small Magellanic Cloud: NGC 339 and NGC 419 [PDF]
The level of central segregation of Blue Straggler stars has proved to be an excellent tracer of the dynamical evolution of old star clusters (the so-called “dynamical clock”), both in the Milky Way and in the Large Magellanic Cloud.
F. Dresbach +7 more
semanticscholar +1 more source
UOCS – VI. UVIT/AstroSat detection of low-mass white dwarf companions to four more blue stragglers in M67 [PDF]
Blue straggler stars (BSSs) in M67 have attracted attention from observations and theory to unravel their formation mechanisms. In the series of Ultra Violet Imaging Telescope (UVIT on AstroSat) study of Open clusters (UOCS), here we report the ...
S. Pandey +2 more
semanticscholar +1 more source
A Census of Blue Stragglers in Gaia DR2 Open Clusters as a Test of Population Synthesis and Mass Transfer Physics [PDF]
We use photometry and proper motions from Gaia DR2 to determine the blue straggler star (BSS) populations of 16 old (1–10 Gyr), nearby (d < 3500 pc) open clusters.
E. Leiner, A. Geller
semanticscholar +1 more source
Blue stragglers (BSs) in different regions (e.g., two sequences) of the color–magnitude diagram (CMD) have been suggested to provide a strong constraint on the origin of BSs in globular clusters (GCs).
D. Jiang
semanticscholar +1 more source
Connecting the Local Stellar Halo and Its Dark Matter Density to Dwarf Galaxies via Blue Stragglers [PDF]
The Gaia H-R diagram shows the presence of apparently young stars at high tangential velocities. Using a simple analytical model, I show that these stars are likely to be blue stragglers.
L. Casagrande
semanticscholar +1 more source
ON THE TRIPLE ORIGIN OF BLUE STRAGGLERS [PDF]
10 pages, 6 figures.
Perets, Hagai B., Fabrycky, Daniel C.
openaire +2 more sources

